Boy Scouts vaporize watermelon

A group of Boy Scouts in Des Moines, Iowa, built an cannon capable of launching a ping pong ball through a watermelon at supersonic speeds.

http://www.wtsp.com/video/2331788186001/1/Boy-Scouts-vaporize-watermelonhttp://bcdownload.gannett.edgesuite.net/wtsp/35087134001/35087134001_2332803016001_th-517bda12e4b0770ffabb7652-1206954755001.jpg?pubId=35087134001Boy Scouts vaporize watermelonA group of Boy Scouts in Des Moines, Iowa, built an cannon capable of launching a ping pong ball through a watermelon at supersonic speeds.iowaBoy Scoutsnationalwtspvaporize watermelonwatermelonNewssciencedes moines01:14